Hello again stefanito,
Sorry, the link doesn't work properly because it's too long. I have tried it out.
The variant: Go to the TechnisatSat page. Under "Support", enter the term "TechniBox HD VAC", and you will find the operating instructions in pdf format.
Creating a list of favourites works with this unit.
If you select the transponder lists and download them manually, you will only receive the channels you want.
Unfortunately, it is not possible to delete individual channels of the respective satellite on this unit.
On the Internet, you can select the channels for yourself from the various satellite providers.

Hello stefanito,
If you buy a water container with a capacity of 10 litres and pour 15 litres of water into it from 5 different taps, you can only take 10 litres out of the container. But you don't know which 10 :-) // Just try it. If the worst comes to the worst, you can revert to the factory settings. Here are the complete operating instructions:
https://www.technisat.com/assetsFS...
This type of device works for me, via a multiswitch, on 3 satellites with around 800 TV and 150 radio stations, and I can never watch or listen to them all together.